1、AECMA STANDARD NORME AECMA AECMA NORM prEN 3662-005 Edition P 3 May 2005 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION Gulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 8110 - Fax. + 32 2 775 8111 - www.aecma-stan.orgICS: 49.060 Supersedes edition P 2 January 1999 D
2、escriptors: ENGLISH VERSION Aerospace series Circuit breakers, three-pole, temperature compensated, rated current 20 A to 50 A Part 005: With polarized signal contact Product standard Srie arospatiale Disjoncteurs tripolaires compenss en temprature, intensits nominales 20 A 50 A Partie 005 : Avec co
3、ntact de signalisation polaris Norme de produit Luft- und Raumfahrt Schutzschalter, dreipolig, Temperaturkompensiert, Nennstrme von 20 A bis 50 A Teil 005: Mit polarisiertem Signalkontakt Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STAN (The Eu
4、ropean Association of Aerospace Industries - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content
5、 shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of AECMA-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee
6、 for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for
7、 publication 31 May 2005 Comments should be sent within six months after the date of publication to AECMA-STAN Electrical Domain Copyright 2005 by AECMA-STAN prEN 3662-005:20052 Foreword This standard was reviewed by the Domain Technical Coordinator of AECMA-STANs Electrical Domain. After inquiries
8、and votes carried out in accordance with the rules of AECMA-STAN defined in AECMA-STANs General Process Manual, this standard has received approval for Publication. Contents Page 1 Scope . 3 2 Normative references 3 3 Dimensions and mass 3 4 Characteristics 5 5 Designation. 10 6 Rated current code.
9、10 7 Delivery codes. 11 8 Marking 11 9 Technical specification 11 prEN 3662-005:20053 1 Scope This standard specifies the characteristics of three-pole circuit breakers, temperature compensated with a rated current from 20 A to 50 A, used in aircraft on-board circuits at a temperature between 55 C a
10、nd 90 C and at an altitude of 15 000 m max. These circuit breakers are operated by a push-pull type single push button (actuator), with delayed action “trip-free“ tripping with a polarized signal contact which is open when main contacts are closed, and inversely. They will continue to function up to
11、 the short-circuit current. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies
12、. EN 3155-016, Aerospace series Electrical contacts used in elements of connection Part 016: Contacts, electrical, male, type A, crimp, class S Product standard.1)EN 3662-001, Aerospace series Circuit breakers, three-pole, temperature compensated, rated current 20 A to 50 A Part 001: Technical speci
13、fication.1)EN 3841-305, Aerospace series Circuit breakers Test methods Part 305: Short-circuit performance. EN 6113, Aerospace series Circuit breaker, connecting and attachment hardware.1)TR 6083, Aerospace series Cut-outs for installation of electrical components.2)MIL-I-81969/1A, Installing and re
14、moval tools, connector electrical contact, type III, class 2, composition C.3)MIL-I-81969/14C, Installing and removal tools, connector electrical contact, type III, class 2, composition B.3)MIL-S-19500, Semiconductor device, diode, silicon, fast recovery.3)FED-STD-595B, Colours used in Government Pr
15、ocurement. 3 Dimensions and mass 3.1 Dimensional characteristics The circuit breakers do not have to correspond to the pictorial illustration, only the dimensions given shall be adhered to. Dimensions are in millimetres. See Figure 1. 1) Published as AECMA Prestandard at the date of publication of t
16、his standard 2) Published as AECMA Technical Report at the date of publication of this standard. 3) Published by: Department of Defense (DOD), the Pentagon, Washington D.C. 20301 USA. prEN 3662-005:20054 110,5 A5C1 B1 A15323M12 x 0,753 min.2 0,3A421 0,5F2F1F1 and F2 : see EN 3662-001, table 317,5 0,
17、8 17,5 0,810 min.10 min. 9,2 0,3926,5 0,3180-123 148 128 max.6,6 0,654+1025 max.4533max.7min.45320-11 10,2 0,36871012C1A1C2A25325B1 B219,5max.0,5A0,5A54 max.34 max.42 max.13Key 1 Push button released 9 1 to 3 max. 2 Green colour according to FED-STD-595B No. 34090 10 3 White Gauge 20 connection pins
18、 according to EN 3155-016M2018 4 Marking area, see Clause 8. 11 Indicative value 25 (see note) 5 Connecting screw and washer 12 Rated current marking (white on green) 6 Push button pressed 13 7 Lockwasher Positioning lug in accordance with the panel cut-out, as per TR 6083C202 8 Attachment nut NOTE
19、Tools noted in Subclause 4.2.4 shall be applied without interfering with the terminal 2 connection. Even if the circuit breakers are grouped. Figure 1 Configuration Dimensions Tolerances F1 and F2: see EN 3662-001, Table 3. prEN 3662-005:20055 3.2 Electrical diagram See Figure 2. Terminal No.: 1 and
20、 2: Main contacts 3 and 5: Signal contacts Figure 2 Electrical diagram 3.3 Mass 185 g max. (Delivery code A including hardware). 3.4 Panel mounting See EN 3662-001. 4 Characteristics 4.1 Material, surface treatment See EN 3662-001. 4.2 Mechanical characteristics 4.2.1 Fasteners See EN 6113. 4.2.2 Re
21、commended tightening torque of attaching nut for installation (5,25 0,25) Nm 4.2.3 Recommended tightening torque of connection hardware for installation (2,35 0,15) Nm A2 A1B2 B1C2 C13 5Push-button releasedA2 A1B2 B1C2 C13 5Push-button pressed3 5or3 5orprEN 3662-005:20056 4.2.4 Recommended tools for
22、 contacts of auxiliary contact insertion and extraction plastic MIL-I-81969/14-11; metallic MIL-I-81969/1-02. 4.2.5 Resistance to vibrations 4.2.5.1 Combined test: ambient temperature at 70 C and vibrations Sinusoidal: 10 gn, see EN 3662-001. Random: 5,8 gn, see EN 3662-001. Low frequencies: 10 gn,
23、see EN 3662-001. 4.2.5.2 Combined test: ambient temperature at 85 C, altitude and vibrations Sinusoidal: 3 gn, see EN 3662-001. 4.2.6 Resistance to shocks 50 gn, see EN 3662-001. 4.2.7 Mechanical endurance See Table 6. 4.3 Environment characteristics 4.3.1 Humidity See EN 3662-001. 4.3.2 Corrosion S
24、ee EN 3662-001. 4.3.3 Contaminating liquids See EN 3662-001. 4.3.4 Overvoltage caused by lightning See EN 3662-001. 4.4 Electrical characteristics 4.4.1 Nominal voltages of main contacts See Table 1. Table 1 Nominal voltage 115 / 200 V a.c., 360 Hz to 800 Hz prEN 3662-005:20057 4.4.2 Diode of signal
25、 contact characteristic Maximum current at 125 C: 0,5 A. Peak repetitive reversal voltage: 800 V min. Quality standard: JANTX according to MIL-S-19500. 4.4.3 Voltage drop at nSee Table 2. Table 2 Ratings A 20 25 30 35 40 45 50 U max. at n V 0,15 0,15 0,15 0,15 0,12 0,12 0,12 Signal circuit: 28 V d.c
26、.; I = 3 mA : U 1,0 V. NOTE When a signal contact has been operated with a power greater than 60 mW and/or with a voltage higher than 28 V d.c, it loses its low current quality. 4.4.4 Minimum and maximum tripping thresholds See Table 3. Table 3 Overload (in % of n) Minimum thresholds value 1 h Maxim
27、um thresholds value 1 h Ambient temperatures C Ratings On ground At 15 000 m On ground 23 5 110 105 145 55 5 110 105 165 70 5 105 100 145 90 5 All 100 90 145 NOTE 1 For detection of minimum threshold, all the poles are connected in series. NOTE 2 For detection of maximum threshold, load value is: in
28、creased by about 20 % when one pole is submitted to the load and other poles are not loaded; increased by about 10 % when two poles are submitted to the load and the other one is not loaded; not increased when the two other poles are loaded at 0,9 n. prEN 3662-005:20058 4.4.5 Overload trip See Table
29、 4. Table 4 Overload (in % of n) 200 500 1 000 3 poles 1 pole 3 poles 1 pole 3 poles 1 pole Ambient temperatures C Ratings A Trip time s 23 5 2 to 20 2 to 22 55 5 60 110 90 5 All 1,5 1,5 0,15 to 4,00 0,15 to 5,20 0,05 to 1,00 0,06 to 1,30 NOTE 1 When 3 poles are loaded, they will be connected in ser
30、ies. NOTE 2 When 1 pole is loaded, the two other poles are not loaded. 4.4.6 Short-circuit values See Table 5. Table 5 Nominal voltage 115/200 V a.c., 360 Hz to 800 Hz 0,8 cos 1 Prospective currents 2 000 A r.m.s. Test altitudes On the ground and at maximum altitude (15 000 m, 12 100 Pa) Number of o
31、perations 1 CO a+ 2 OCO baBreak operation (for definition see EN 3841-305). bMake operation (for definition see EN 3841-305). prEN 3662-005:20059 4.4.7 No-load and load endurance See Table 6. Table 6 Number of operations to be provided No-load Load 5 000 2 500 Main contacts Applicable Inductive 0,6
32、cos 0,7 n, 115/200 V a.c. - 360 Hz to 800 Hz All ratings Signal contacts Applicable Resistive 3 mA, 28 V d.c. Resistive 3 mA, 5 V d.c. Lamp 0,2 A, 28 V d.c. Resistive 0,5 A, 28 V d.c. NOTE 1 One operation corresponds to one closing + one opening. NOTE 2 Tolerances 5 % on current, voltage and frequen
33、cy values. 4.4.8 Dielectric rigidity See Table 7. Table 7 Closed position Z = 0 m Z = 15 000 m A1, B1, C1 with attachment A1, B1, C1 with 3 A1, B1, C1 with 5 A1, A2 with B1, B2 and C1, C2 B1, B2 with A1, A2 and C1, C2 1 500 V 400 V 3 with 5 3 and 5 with attachment 500 V 150 V Open position Z = 0 m Z
34、 = 15 000 m A1, B1, C1 with A2, B2, C2 A1, B1, C1, A2, B2, C2 with attachment 3 and 5 with A1, B1, C1 3 and 5 with A2, B2, C2 A1, A2 with B1, B2 and C1, C2 B1, B2 with A1, A2 and C1, C2 1 500 V 400 V 3 and 5 with attachment 500 V 150 V prEN 3662-005:200510 4.4.9 Insulation resistance According to EN
35、 3662-001, Table 5. 4.4.10 Overload endurance Not applicable 5 Designation EXAMPLE Description block CIRCUIT BREAKER Identity block EN3662-005A20AA Number of EN standard Design code, A: green button Rated current code (see Table 8) Delivery code A (see Table 9) NOTE If necessary, the code I9005 shal
36、l be placed between the description block and the identity block. 6 Rated current code See Table 8. Table 8 Rating current n (A) 20 25 30 35 40 45 50 Marking on actuator 20 25 30 35 40 45 50 Rated current code 20A 25A 30A 35A 40A 45A 50A prEN 3662-005:200511 7 Delivery codes See Table 9. Table 9 Con
37、nection and attachment hardware kits EN 6113 Delivery conditions Delivery code Kit part-No. aIncluded parts Pieces per part Fitted Supplied separately Connecting screw 6 Connecting lock washer 6 Attachment nut 1 A EN 6113C Attachment lock washer 1 X Attachment nut 1 B EN 6113B Attachment lock washer
38、 1 X aSpare parts could be ordered separately, informations see EN 6113. 8 Marking As defined on the drawing and unless otherwise specified by contract, marking shall include: the designation defined in Clause 5 on the packaging; the manufacture date (year, week); the manufacturers name or trademark
39、; the electrical diagram and the terminal identification; the manufacturers part number (corresponding to the part number which includes connection and attachment hardware supplied separately in a bag). NOTE The marking could be on both opposite sides. For electrical diagram printed on the circuit breaker and/or terminal identification numbers see Figure 1. 9 Technical specification See EN 3662-001.
